19166740

素因数分解:

$2^2\times 5^1\times {\mathrm{37}}^1\times {\mathrm{59}}^1\times {\mathrm{439}}^1$

素因数の和:544

約数の個数: 48

約数和(自身を含む): 42134400

約数和(自身を除く): 22967660

約数列:

[1, 2, 4, 5, 10, 20, 37, 59, 74, 118, 148, 185, 236, 295, 370, 439, 590, 740, 878, 1180, 1756, 2183, 2195, 4366, 4390, 8732, 8780, 10915, 16243, 21830, 25901, 32486, 43660, 51802, 64972, 81215, 103604, 129505, 162430, 259010, 324860, 518020, 958337, 1916674, 3833348, 4791685, 9583370, 19166740]

約数ペア:

[(1, 19166740), (2, 9583370), (4, 4791685), (5, 3833348), (10, 1916674), (20, 958337), (37, 518020), (59, 324860), (74, 259010), (118, 162430), (148, 129505), (185, 103604), (236, 81215), (295, 64972), (370, 51802), (439, 43660), (590, 32486), (740, 25901), (878, 21830), (1180, 16243), (1756, 10915), (2183, 8780), (2195, 8732), (4366, 4390)]